11953161 has 12 divisors (see below), whose sum is σ = 18835440. Its totient is φ = 7244280.

The previous prime is 11953129. The next prime is 11953163. The reversal of 11953161 is 16135911.

It is not a de Polignac number, because 11953161 - 2⁵ = 11953129 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (11953163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60271 + ... + 60468.

It is an arithmetic number, because the mean of its divisors is an integer number (1569620).

Almost surely, 2^11953161 is an apocalyptic number.

11953161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11953161 is a deficient number, since it is larger than the sum of its proper divisors (6882279).

11953161 is a wasteful number, since it uses less digits than its factorization.

11953161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120756 (or 120753 counting only the distinct ones).

The product of its digits is 810, while the sum is 27.

The square root of 11953161 is about 3457.3343778119. The cubic root of 11953161 is about 228.6445863850.

It can be divided in two parts, 1195 and 3161, that added together give a square (4356 = 66²).

The spelling of 11953161 in words is "eleven million, nine hundred fifty-three thousand, one hundred sixty-one".